JP5025454B2 - Air lock door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air lock door device whose structure is simplified as much as possible, and which does not cause the simultaneous opening of two doors resulting in the failure of differential pressure control. <P>SOLUTION: A doorway booth 4 is arranged outside a doorway 1 of a pressure adjusted chamber. The doorway booth is provided with, in the same face as a perpendicular face formed of the doorway 1, a first doorway 2 communicating with the pressure adjusted chamber and a second doorway 3 communicating with the outside. There is provided a single door 5 having a shape that can simultaneously and tightly close the first and second doorways 2, 3 in a face formed of the first and second doorways 2, 3. The door 5 can open the second doorway 3 when it is slid to the side of the first doorway 2 and the first doorway 2 is tightly closed, or can open the first doorway 2 when it is slid to the side of the second doorway 3 and the second doorway 3 is tightly closed. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to the interior and exterior of a room or building such as a hospital, laboratory, nuclear facility, etc., in which the internal pressure is adjusted, or in a building (hereinafter referred to as “pressure-regulating room”). It has a function to shut off airtightly and can enter and exit without impairing the pressure difference set between the inside and outside of the pressure regulation room even if the door is opened and closed when people enter and exit It is related with the airlock door device formed in this way.

  The air lock door is used to maintain and manage the pressure difference (differential pressure) set between the inside and outside of the room at the entrance / exit provided in the prescribed pressure regulating room in each facility as described above. The door device is provided, and many proposals have been conventionally made by Patent Documents 1 to 6 and the like.

However, the proposed air lock door device has problems such as a complicated structure and a large facility for realizing necessary and sufficient differential pressure management.
For example, a door device provided at the entrance of a room is formed in at least one or more pressure regulation booths (also called pressure regulation chambers) that are individually partitioned by a plurality of doors. People enter and exit the booth according to the door opening and closing patterns set for the pressure control booth entrance and exit doors, such as entering the booth, closing the entrance door, opening the booth exit door and entering the inside of the pressure control room. ing.

  Each of the doors described above is controlled with a fixed control pattern by a combination of sequence control and interlock control, etc., depending on the driving force of a motor or the like, and the two doors when trouble occurs in the control system. Open at the same time, it becomes impossible to control the pressure difference between the inside and outside of the pressure regulating chamber, and people are trapped in the pressure regulating booth of the air lock door device.

In view of the problems of the electric control system as described above, when a plurality of doors are interlock-controlled by a pure mechanical configuration and one door is opened, the next door does not open, and the opened one door is not closed. There is something that prevents you from opening the door. However, this mechanical system is likely to cause operation troubles and failures due to its complicated structure. If the interlock mechanism eventually fails, the same problems as those of the electric control type will occur. .
Japanese Utility Model Publication No. 62-57194 JP 59-159091 A Japanese Patent Laid-Open No. 61-120090 JP-A-62-44688 Japanese Patent Laid-Open No. 3-24495 JP 2001-235576 A

  Accordingly, in view of the problems of the conventional air lock door device as described above, the present invention simplifies the structure of the air lock door device as much as possible, and at the same time opens the two doors so that the differential pressure management fails. It is an object to provide an air lock door device that does not occur.

The first configuration of the air lock door device of the present invention made for the purpose of solving the above problems is as follows.
An entrance booth having a first entrance leading to the pressure regulating chamber and a second entrance leading to the outside in the same plane as the vertical plane formed by the entrance is provided outside the entrance of the pressure regulating chamber. A single door having a shape capable of simultaneously sealing the first and second entrances in a plane formed by the second entrance, and sliding the first entrance to close the first entrance and exit. 2 is provided with a door that can open the first doorway when the second doorway is opened or when the second doorway is sealed by sliding to the second doorway side.

Moreover, the 2nd structure of this invention air-lock door apparatus which can solve the said subject is as follows.
An entrance booth having a first entrance leading to the room and a second entrance leading to the outside in the same plane as the vertical plane formed by the entrance is provided outside the entrance of the pressure regulating chamber. One door having a shape capable of sealing either one of the first and second doors in a plane formed by the doorway of the doorway, and sliding the doorway on either side of the doorway, An entrance door that seals and opens the entrance on the other side is provided, and when the door is closed between the first entrance and the second entrance, the interior of the entrance booth is between the first and second entrances. And a door inside the booth that communicates between the first and second entrances in the booth when the door is opened.

  In the present invention of the first configuration, the first and second of the entrance / exit booth provided with the second entrance / exit in the same vertical plane as the first entrance / exit leading to the inside of the pressure regulating chamber and communicating to the outside. If both doors are closed at the same time with one door, and the door is slid to one of the doors, the other door will be opened, so both doors will open at the same time. There is no state.

  Further, in the second configuration of the present invention, with respect to the entrance / exit booth provided in the same manner as described above, either one of the first and second entrances / exits is provided in a plane formed by the first and second entrances / exits. One door having a shape that can be sealed, and when it is slid to one of the entrances and exits, an entrance / exit door is provided that seals the entrance / exit on the sliding side and opens the entrance / exit on the other side. Inside, between the first and second entrances, when the door is closed, the space between the first entrance and the second entrance is hermetically partitioned and when the door is opened, the first and second entrances are located in the booth. Since the booth door that communicates with each other is provided, the first and second doorways do not open simultaneously at the same time as in the first invention. Here, in both the first and second inventions, the opening / closing operation of each door may be performed by a driving force of a motor, a cylinder or the like in addition to a manual opening / closing operation.

  Furthermore, in any airlock door device, the locking means that allows or rejects the opening / closing operation of the door is formed by one (or one set) of mechanical locking means, so that both doors are opened simultaneously. There is no operation trouble like electrical system control. Moreover, since it is control which permits the opening / closing operation | movement of the door by the single lock | rock means of a mechanical system, even if a trouble arises in the said lock | rock means, both doorways will not be in an open state simultaneously.

Next, an embodiment of the door device of the present invention will be described with reference to the drawings.
FIG. 1 is a plan sectional view showing an open state of the second doorway (the first doorway is closed) leading to the outside of the doorway booth in an example of the door device of the present invention, and FIG. 2 is a view of the doorway booth in the door device of FIG. FIG. 3 is a plan view showing a closed state of both the first and second doors, and FIG. 3 is a plan view showing a state where the first door of the door booth is open (the second door is closed) in the door device of FIGS. It is sectional drawing.

  4 to 6 are plan sectional views of the door device of the second configuration of the present invention, and FIG. 4 is a view of the second doorway leading to the outside of the doorway booth in an example of the door device of the second configuration of the present invention. FIG. 5 is a cross-sectional plan view showing the door open state (the first doorway is in a closed state), FIG. 5 is a cross-sectional plan view showing both the first and second doorways of the doorway booth in the door device of FIG. 4, and FIG. In the door apparatus of FIG. 5, the 1st entrance / exit of an entrance / exit booth is a plane sectional view which shows an open state (a 2nd entrance / exit is a closed state). 4 to 6, all the booth doors are in the closed state. However, when the person moves from the state shown in FIGS. 4 to 5, the booth doors are in the closed state shown in FIG. 4. In the closed state, the door has been opened once.

  1 to 3, walls W1 and W2 are walls of a pressure regulating chamber (or building), and an entrance 1 leading to the interior Ri of the pressure regulating chamber is formed in the walls W1 and W2. In addition, the inner side of W1 and W2 of FIGS. 1-3 is the inside Ri of a pressure regulation chamber.

  In the example of FIGS. 1 to 3, the first entrance 2 is provided at the same position as the entrance 1 of the pressure adjusting chamber with the wall W2 interposed therebetween, and communicates with the outside at a position symmetrical to the first entrance 2 with the wall W2 interposed therebetween. A second entrance / exit 3 is formed. An entrance / exit booth 4 having first and second entrances 2 and 3 is provided outside the entrance / exit 1 of the pressure regulating chamber. The booth 4 is a closed space except for its entrances 2 and 3. W3 is a wall of the entrance / exit booth 4, and W4 is an external wall orthogonal to the wall W3 of the entrance / exit booth 4.

  In the entrance / exit booth 4, the two entrances 2, 3 slide in parallel to the floor (horizontal plane) through the wall W <b> 2 in the vertical plane formed by the entrances 2, 3, and either the entrance / exit 2. Or the door 5 of the shape (size) which can open | release 3 or can seal both the entrances 2 and 3 simultaneously in a neutral position is provided. The door 5 is provided with door receivers 5a and 5b along the walls W1 and W4 for receiving the sliding operation and positioning and fixing the door 5 in the neutral position when locked. The locking means (device) 6 of the door 5 is provided outside the wall W2 as an example, but the installation place of the locking means 6 may be another place.

  In the state of FIG. 2 in which the two doors 1 and 2 are simultaneously airtightly closed by a single door 5 (the closed state of both the doors 2 and 3 in a normal state where no person or the like enters and exits), the door 5 is connected to the door 5 of FIG. When it is slid to the upper door receptacle 5a, the second entrance 3 is opened, and the person M can freely enter and exit the entrance booth 4 from the outside (see FIG. 1). At this time, since the interior Ri of the pressure regulating chamber is sealed by the sliding door 5, the interior Ri of the room does not communicate with the outside. That is, the set pressure of the interior Ri of the room is maintained at a predetermined pressure.

  In the state of FIG. 1, in order for the person M to enter the interior Ri of the pressure adjusting chamber, the door 5 that has been slid upward to open the second entrance 3 is slid downward in the figure to temporarily return to FIG. 2. After passing through the state of FIG. Then, the slid door 5 seals the second entrance 3 that was previously opened while being supported by the door passage of the wall W2 and the door receiver 5b, and the first entrance 2 that was previously shut off and sealed. The person M can enter the interior Ri of the pressure adjusting room because the hermetic block with the inlet / outlet 1 of the pressure adjusting room is released. At this time, since the interior Ri of the room and the interior of the entrance / exit booth 4 in which the second entrance 3 is sealed are placed under the same pressure, the set pressure of the interior Ri of the pressure regulating chamber is maintained at a predetermined level.

  In order for the person M who is in the inside Ri of the pressure regulating chamber to go outside, the door 1 enters the entrance booth 4 through the entrance 1 and the first entrance 2 of the pressure regulating chamber which is open in the state of FIG. When the door 5 is slid upward in the figure and the door 5 is moved to the state shown in FIG. 1 after passing through the state shown in FIG. When the person M goes outside, the door 5 is slid downward, and the state shown in FIG. 2, that is, the first and second entrances 2 and 3 are simultaneously sealed by the door 5, thereby It will return to the state where it cannot enter and exit.

  As described above, in the first example of the air lock door device of the present invention described with reference to FIGS. 1 to 3, one sheet that opens and closes the first and second doors 2 and 3 provided in the doorway booth 4. The door 5 prevents the doors 2 and 3 from being opened at the same time, and the locking means 6 for controlling the opening / closing operation of the door 5 is provided only in one place. It is possible to provide an air lock door device that has a simple structure and does not have a failure or an operation trouble in order to enter and exit while maintaining the differential pressure controlled by Ri.

Next, a second example of the air lock door device of the present invention will be described with reference to FIGS. In addition, the same code | symbol is used for the same member and the same site | part as FIGS. 1-3.
4 to 6, the first entrance 2 is provided at the same position as the entrance 1 of the pressure adjusting chamber with the wall W2 interposed therebetween, and the outside is located at a position substantially symmetrical to the first entrance 2 with the wall W2 interposed therebetween. The 2nd entrance / exit 3 which leads is formed. An entrance / exit booth 4 having first and second entrances 2 and 3 is provided outside the entrance / exit 1 of the pressure regulating chamber. Inside the booth 4, a hinge-type door 7 is arranged to air-divide the inside of the booth 4 in an airtight manner even on the extension line of the wall W2. The booth 4 is a closed space except for the entrances 2 and 3. 4 to 6, W3 is an outer wall of the entrance / exit booth 4, and W4 is an external wall orthogonal to the wall W3 of the entrance / exit booth 4.

  In the above-described entrance / exit booth 4, the two entrances 2, 3 slide in parallel to the floor (horizontal plane) through the wall W <b> 2 in the vertical plane formed by both entrances 2, 3. When the doorway 2 or 3 is opened, a door 51 having a shape (size) that can seal the other doorway 3 or 2 is provided. The door 51 receives and supports the sliding operation, and door receivers 51a and 51b are provided along the walls W1 and W4 for positioning and fixing the door 51 at a position where the doorway 2 or 3 is sealed. ing. The door 51 includes a small door 51c such as a hinge type inside thereof.

  On the other hand, the hinged door 7 that hermetically closes and opens the interior of the entrance / exit booth 4 in the two rooms 41 and 42 can be opened and closed at the hinge 7a. The door 7 has a single locking device 61 which is a locking means for the door 51 and also functions as a locking means for the door 51, and is positioned on the non-hinge side of the closed door 7 and the doorway 3 side. The door 51 is connected to the door 51. In the figure, 7b is a handle provided on the door 7, and is an opening / closing handle of the locking device 61 that also serves as a handle for advancing and retreating, for example. The operation handle for Kanuki or the opening / closing handle for the door 7 may have a form or structure other than the handle 7b.

  Now, when the door 7 is closed and the entrance / exit booth 4 is airtightly partitioned into two rooms 41, 42, the door 51 is on the door receiver 51b side and the entrance 3 is closed airtight (see FIG. 6). ). When the entrance / exit booth 4 is in this state, in order for the person M to enter the interior Ri of the pressure adjusting chamber, first, the small door 51c of the door 51 is opened, then the room 41 is entered, and the small door 51c is closed.

  The person M who enters the room 41 operates the handle 7b to unlock the door 7, opens the door 7 and closes the door 7 which has entered the room 42 (see FIG. 5). In this state, the person M who enters the room 42 slides the door 51 downward in FIG. 5 to open the entrance 2 of the entrance booth 4 (see FIG. 6). As a result, the entrance 1 of the interior Ri of the pressure regulating chamber communicates with the entrance 2 of the room 42 sealed by the door 7, so that the person M can enter the interior Ri of the pressure regulating room from the room 42. .

When exiting from the inside Ri of the pressure regulating chamber, the door 2 returns to the room 42 through the open entrances 1 and 2, and the door 51 in the state of FIG. 6 is slid so as to be in the state of FIG. To seal. Next, the door 7 partitioning the entrance / exit booth 4 is opened and the room 42 is returned to the room 41. When the door is returned, the door 7 is closed and the room 42 is sealed. Thereafter, the handle 7b is turned and both doors 51 and 7 are locked by the locking device 61.
In the present invention, unlike the above example, the door 51 is slid toward the door receiver 51b, the doors 51 and 7 are locked by the locking device 61, and the doors 51 and 7 exiting from the small door 51c. It is also possible to adopt a closed pattern.

As described above, in the second example of the air lock door device of the present invention described with reference to FIGS. 4 to 6, the first and second entrances 2 and 3 provided in the entrance booth 4 are selectively opened and closed. The first door 51 and the second door 7 for partitioning the entrance / exit booth 4 into two rooms 41 and 42 are provided, and the doors 51 and 7 are arranged so that the two entrances 2 and 3 are not opened simultaneously. Since the opening and closing operation is mechanically controlled by a single locking means 61 provided in only one place, the mechanically structured interlock mechanism makes it possible to create a pressure-control room that is free of trouble and trouble. An air lock door device for entering and exiting can be provided.
Whether the doors 51 and 7 are opened or closed by input or using a driving source such as a motor can be arbitrarily selected.

  The present invention is as described above, and, as an example, the first doorway leading to the pressure regulating chamber and the second doorway leading to the outside in the same plane as the vertical plane formed by the doorway are formed outside the doorway of the pressure regulating chamber. A door having a shape capable of simultaneously sealing the first and second entrances in a plane formed by the first and second entrances. When the first doorway is sealed by sliding to the side, the second doorway is opened, or when the second doorway is slid to seal the second doorway, a door that can open the first doorway is provided. Therefore, the interlock mechanism with a mechanical configuration in the air lock door device can be realized with a greatly simplified structure, and the interlock mechanism with a simple configuration can be realized. Operating trouble or failure is not enough to be completely say from, therefore, is extremely useful because the occurrence of simultaneous open state of the two entrances that lead to Yabujo to crimp management can be prevented.

The plane sectional view which shows the door opening state (1st doorway is a closed state) of the 2nd doorway which went to the exterior of the doorway booth in an example of this invention door apparatus of a 1st structure. FIG. 3 is a cross-sectional plan view showing a closed state of the first and second doorways of the doorway booth in the door device of FIG. 1. In the door device of FIGS. 1 and 2, a plan sectional view showing a first doorway of the doorway booth in an open state (a second doorway is in a closed state). The plane sectional view which shows the door opening state (1st doorway is a closed state) of the 2nd doorway which opened to the exterior of the doorway booth in an example of this invention door apparatus of a 2nd structure. FIG. 5 is a cross-sectional plan view showing a closed state of the first and second entrances and exits of the entrance / exit booth in the door device of FIG. 4. 4 and 5, the first cross-section of the doorway booth in the door device of FIG. 4 and FIG. 5 is a plan sectional view showing the open state (the second doorway is closed).

Explanation of symbols

Ri Inside the pressure regulation room 1 Entrance / exit of the pressure regulation room 2 First entrance / exit of the entrance / exit booth 3 Second entrance / exit of the entrance / exit booth 4 Entrance / exit booth 5,51 Door 6,61 Locking device

Claims (2)

An entrance / exit booth having a first entrance / exit leading to the pressure regulation chamber and a second entrance / exit leading to the outside in the same vertical plane is provided outside the pressure regulation chamber, while the first / second entrance / exit forms the plane The first and second doors can be sealed at the same time, and when the first door is closed by sliding to the first door side, the second door is opened, or 2. An air-lock door device provided with a door that can be opened by sliding to the doorway side to seal the second doorway. An entrance / exit booth having a first entrance / exit leading to the pressure regulation chamber and a second entrance / exit leading to the outside is provided in the same vertical plane outside the pressure regulation chamber, while the first / second entrance / exit One door having a shape that can seal either one of the first and second doors, and when sliding to either one of the doors, the door on the sliding side is sealed and the other side is closed An entrance door that opens the entrance is provided, and the doorway is hermetically partitioned between the first entrance and the second entrance when the door is closed inside the entrance booth and between the first and second entrances. An air lock door device comprising a booth door that communicates between the first and second entrances in the booth.

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